I started by looking at the selling price of a 2016 Audi S3 with similar specs and condition, which sold for AED 43,500 on 2023-10-29. This car is two years older and has higher mileage, so the 2018 model should be valued higher. Next, I considered the dealer-sold price of a 2018 Audi S3 with similar mileage and specs, which was AED 75,650 on 2024-09-12. This is a strong indicator of the market value. I also reviewed the listed prices of similar 2018 models, which ranged from AED 66,000 to AED 121,000. The most relevant listings, considering mileage and condition, were AED 94,750 and AED 89,000. Given these data points, the dealer-sold price is the most reliable, and the market estimate should be slightly lower due to the car's average condition and higher mileage compared to the dealer-sold car.